Company Filing History:

13 out of 27,375

Matsushita Electric Industrial Co., Ltd.

Sumita Optical Glass, Inc.

patents

4. 1 out of 16,453

Panasonic Corporation

patents

where one patent can have more than one assignee

Years Active: 1986-2011

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7897533 - Optical glass composition, preform and optical element (2011-03-01),

2. 7897532 - Optical glass composition, preform and optical element (2011-03-01),

3. 6009728 - Die for press-molding optical elements (2000-01-04),

4. 6003336 - Method of manufacturing a die for press-molding optical elements (1999-12-21),

5. 5965069 - Method for making optical preforms and optical elements by press (1999-10-12),

6. 5904747 - Method of molding optical articles (1999-05-18),

7. 5766294 - Method and apparatus for producing an optical element using a molding (1998-06-16),

8. 5759221 - Method of press molding glass optical elements (1998-06-02),

9. 5718850 - Method and device for manufacturing optical elements (1998-02-17),

10. 5700307 - Die for press-molding optical elements (1997-12-23),

11. 5322541 - Method of producing glass blank (1994-06-21),

12. 5201927 - Method of producing the optical element (1993-04-13),

13. 5188652 - Machine for molding optical element (1993-02-23),

14. 5015280 - Mold for molding optical elements (1991-05-14),

15. 4606750 - Mold for direct press molding of optical glass element (1986-08-19),

Title: The Innovations of Shoji Nakamura

Introduction

Shoji Nakamura is a renowned inventor known for his significant contributions to the field of optical materials. He is based in Hirakata, Japan, and holds a total of 15 patents. His work has had a profound impact on the development of optical glass compositions and elements.

Latest Patents

Nakamura's latest patents include innovative optical glass compositions that are designed to enhance the performance of optical elements. One of his notable patents describes an optical glass composition that contains specific percentages of SiO, BO, ZnO, ZrO, LaO, and other compounds, achieving a refractive index (nd) of 1.88 to 1.92. Another patent outlines a different optical glass composition with a mole percentage of SiO, BO, and LaO, achieving an nd of 1.83 to 1.87. These compositions are crucial for the manufacturing of high-quality optical elements.

Career Highlights

Throughout his career, Nakamura has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in optical technology.

Collaborations

Nakamura has collaborated with notable colleagues, including Masaaki Sunohara and Yoshinari Kashiwagi. These partnerships have fostered a creative environment that has led to the development of advanced optical materials.

Conclusion

Shoji Nakamura's contributions to the field of optical glass compositions have established him as a leading inventor in his domain. His innovative patents and collaborations continue to influence the industry and pave the way for future advancements.

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